Risk of Breast and Ovarian Cancer After Prophylactic Mastectomy and Salpingo‐Oophorectomy in BRCA1/2 Germline Variant Carriers: A Retrospective Cohort Study From a Single German Center. - Mendes, Sara; Yahiaoui‐Doktor, Maryam; Fallenberg, Eva Maria; Kiechle, Marion; Grill, Sabine (Cancer Medicine, 2026)